JavaScript Testing Patterns

JavaScript Testing Patterns

Comprehensive guide for implementing robust testing strategies in JavaScript/​TypeScript applications using modern testing frameworks and best practices.

Use this skill when

• Setting up test infrastructure for new projects
• Writing unit tests for functions and classes
• Creating integration tests for APIs and services
• Implementing end-to-end tests for user flows
• Mocking external dependencies and APIs
• Testing React, Vue, or other frontend components
• Implementing test-driven development (TDD)
• Setting up continuous testing in CI/​CD pipelines

Do not use this skill when

• The task is unrelated to javascript testing patterns
• You need a different domain or tool outside this scope

Instructions

• Clarify goals, constraints, and required inputs.
• Apply relevant best practices and validate outcomes.
• Provide actionable steps and verification.
• If detailed examples are required, open resources/​implementation-playbook.md.

Resources

• resources/​implementation-playbook.md for detailed patterns and examples.

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AGI Framework Integration

Adapted for @techwavedev/​agi-agent-kit Original source: antigravity-awesome-skills

Memory-First Protocol

Retrieve prior test strategies, known flaky tests, and coverage gaps. Cache test infrastructure setup to avoid re-configuring test environments.

# Check for prior testing/​QA context before starting
python3 execution/​memory_manager.py auto --query "test patterns and coverage strategies for Javascript Testing Patterns"

Storing Results

After completing work, store testing/​QA decisions for future sessions:

python3 execution/​memory_manager.py store \
  --content "Testing strategy: integration tests hit real DB (no mocks), 85% line coverage, mutation testing on critical paths" \
  --type technical --project <project> \
  --tags javascript-testing-patterns testing

Multi-Agent Collaboration

Share test results and coverage reports with code review agents so they can verify adequate coverage on changed code.

python3 execution/​cross_agent_context.py store \
  --agent "<your-agent>" \
  --action "QA complete — test suite expanded with 12 new integration tests, all passing" \
  --project <project>

TDD Enforcement

This skill integrates with the framework's iron-law RED-GREEN-REFACTOR cycle. No production code without a failing test first.

Agent Team: QA

Dispatch qa_team to generate tests and verify they pass before marking implementation complete.

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